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Full text of "The manufacture and properties of iron and steel"

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THE UNITED STATES.
473
kept on hand. Connellsville coke is higher in ash than that of Durham, but is quite as good in physical structure, and superior to any coke on the Continent. The coal contains from 30 to 35 per cent, of volatile matter. The beehive oven is used almost universally throughout the region, and it is the rule that the coke is made at the mine, but within the last few years a number of by-product ovens have been erected at furnace plants. The coke from Connellsville is used not only near home, but is sent in great quantities to Eastern Pennsylvania, New Jersey and Maryland, northward to Buffalo and Canada and westward to Chicago and Duluth.
Tables XXII-0 and XXII-P show the distribution of works in the Pittsburgh district, while Fig. XXII-G- illustrates the Edgar Thomson Bessemer plant at Braddock.
TABLE XXII-P.
Steel Works and Mills in the Pittsburgh District.
	Allegheny County, Pa.	|j|	Shenango Valley, Pa.	Mahoning Valley, Pa.	Ohio River Counties, Ohio. .	West Virginia.	o
B essemer converters (see Table XXII-0) .	16		2	'    4	4	4	30
Open hearth furnaces : In large works (see Table XXII-0) , .....	95	6	19				120
In steel casting plants ....................	17		6				23
In crucible plants (see also "Black Diamond," Part I) ..... .....................	6		1				7
In other small plants. . ...................	9	5					14
Total open hearth furnaces ........	127	11	26				164
Works making crucible steel ..............	11	3	3				17
Total number of plants having steel works or rolling mills. .........................	63	24	28	13	12	12	152
Blast furnaces : In large works (see Table XXII-O) ...... In small works .............. ,....; ........	24 10	.......	7 12	3 12	5 3	1 2	40 42
Total blast furnaces. . , ...............	34	3	19	15	8	3	82
							
SEC. XXIIe.óChicago:
The district of Chicago includes the plant at Joliet, 111., and the rolling mills at Milwaukee, Wis. The metallurgical conditions here are the same as in Pittsburgh. The coke is brought by rail from Connellsville or from West Virginia, the distance ranging from 535 to 625 miles. The strong point of the situation is the short distance through which the ore is brought, and the haul is entirely by lake